I don't think my plugin has any relation to that. Sounds more similar to what MorphMan does, except it deals with morphemes and not individual kanji.
Cangy had a Core6K spreadsheet with various sort indices for kanji sequence sorting on the sentence field.
http://forum.koohii.com/thread-5091.html
Looks like it was done with the kanji-sort script (itself not available now): "given a kanji list sort the input according to the furthest position in the list of all the kanji in a designated field of the input".
http://web.archive.org/web/2010121605562...kanji-sort
Cangy had a Core6K spreadsheet with various sort indices for kanji sequence sorting on the sentence field.
http://forum.koohii.com/thread-5091.html
Looks like it was done with the kanji-sort script (itself not available now): "given a kanji list sort the input according to the furthest position in the list of all the kanji in a designated field of the input".
http://web.archive.org/web/2010121605562...kanji-sort